Daniel Klein’s Pizarro communicated all the awful power of a little man who wants to play in the big leagues.

— Opera News

Imaginative, adventurous, and occasionally downright terrifying, audiences have found in Bass-Baritone, Daniel Klein an exciting example of versatility. Recent appearances include 'Donnie' Don Pizarro in Heartbeat Opera's acclaimed Black Lives Matter Fidelio; Marcello in La Boheme and Baron Gondremark in La vie Parisienne with Long Island Opera; Fra Melitone in La Forza del Destino with New Amsterdam Opera; Hyde in the New York Premier of Carlisle Floyd’s The Prince of Players with the Little Opera Theater of New York and the bass soloist in Mozart’s Coronation Mass and Handel's Messiah with Garden State Symphony.

Other recent credits include creating the title role Frank London’s new opera Hatuey: A Memory of Fire at the Sundance Theater Lab, and Don Bartolo in Il Barbiere di Siviglia with LoftOpera. He joined the Altamura/Roundtop Festival as Geronimo in Il Matrimonio Segreto, and returned to Opera Company of Middlebury as Ping in Turandot where he has performed Marcello in La bohème, Rambaldo in La rondine and Mustafà in Rossini's L’Italiana in Algeri, Monterone in Annapolis Opera's Rigoletto, Tonio in Opera Providence's Pagliacci, and as the Recluse in Frank London’s Talmudic-Klezmer Oratorio A night in the Old Marketplace in Sao Paulo, Brazil.